Expiration & Storage Tips
When does cane sugar expire?
Unopened cane sugar can last indefinitely, as long as it's stored in a dry, cool place. Once opened, it should be used within two years for best quality, but it doesn't really go bad as long as it doesn't pick up any foreign odors or flavors. With homemade cane sugar (e.g. brown sugar made by mixing molasses and white sugar), if properly stored, it also lasts indefinitely. Frozen cane sugar can be tricky since freezing doesn't bring much benefit due to the low moisture content of sugar, but it can be kept in freezer theoretically indefinitely without affecting the taste or quality of the sugar.
How do you tell if cane sugar is bad?
Cane sugar doesn't spoil or turn rancid due to its low moisture content. However, it can absorb moisture from the air, causing it to harden (this is common with brown sugar). Although not a sign of spoilage, it can be inconvenient when you need to use it. Similarly, if it picks up odors from other items stored nearby, it's best to throw it out as these flavors can affect whatever you're using it for.
Tips for storing cane sugar to extend shelf life
• Always store your cane sugar in a cool, dry place away from any source of moisture or odors.
• Seal your sugar container tightly. This is crucial to prevent the sugar from absorbing moisture and other odors.
• For brown sugar, try storing it with a slice of bread or a couple of marshmallows in the packaging. Both will provide enough moisture to keep the sugar from hardening.
• If your cane sugar has hardened, place it in a microwave-safe bowl, cover it with a wet paper towel, and zap it for 20-30 seconds. This will soften the sugar, but remember to use it right away.